防(fang)爆加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)是一(yi)種消(xiao)耗(hao)電能(neng)轉換為熱(re)(re)(re)(re)(re)能(neng)，來對需加(jia)熱(re)(re)(re)(re)(re)物料進行加(jia)熱(re)(re)(re)(re)(re)。防(fang)爆加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)是由外(wai)到里外(wai)殼(ke)（不繡(xiu)鋼/碳鋼/銅/鈦材(cai)等、發熱(re)(re)(re)(re)(re)絲（鎳鉻鉛合金(jin)）、填充物（氧化鎂，作用(yong)(yong)是導(dao)熱(re)(re)(re)(re)(re)、絕緣）、外(wai)殼(ke)（不繡(xiu)鋼、碳鋼、鈦材(cai)、銅  等）、陶(tao)瓷封頭（作用(yong)(yong)：絕緣）、防(fang)爆盒組成的。加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)在工作中低溫(wen)流(liu)體(ti)介(jie)質(zhi)(zhi)通(tong)過管(guan)(guan)(guan)(guan)道在壓力作用(yong)(yong)下進入其輸(shu)入口，沿著電加(jia)熱(re)(re)(re)(re)(re)容器(qi)內部特定換熱(re)(re)(re)(re)(re)流(liu)道，運用(yong)(yong)空(kong)氣(qi)(qi)電熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)的流(liu)體(ti)熱(re)(re)(re)(re)(re)力學(xue)原(yuan)理(li)設計的路(lu)徑，帶走空(kong)氣(qi)(qi)加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)中的電熱(re)(re)(re)(re)(re)元件工作中所產(chan)生的高溫(wen)熱(re)(re)(re)(re)(re)能(neng)量(liang)，使空(kong)氣(qi)(qi)加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)被加(jia)熱(re)(re)(re)(re)(re)介(jie)質(zhi)(zhi)溫(wen)度(du)升高，加(jia)熱(re)(re)(re)(re)(re)管(guan)(guan)(guan)(guan)出(chu)口得到工藝要求的高溫(wen)介(jie)質(zhi)(zhi)。

產品特點(dian)

1.升溫(wen)時(shi)間在試驗電壓(ya)下(xia)，元件從環(huan)境溫(wen)度升至試驗溫(wen)度時(shi)間應不大于15min

2.額定(ding)(ding)(ding)功(gong)(gong)率(lv)偏差在充分發(fa)熱的(de)條件(jian)下，元(yuan)件(jian)的(de)額定(ding)(ding)(ding)功(gong)(gong)率(lv)的(de)偏差應不超(chao)過下列規定(ding)(ding)(ding)的(de)范圍;對(dui)(dui)額定(ding)(ding)(ding)功(gong)(gong)率(lv)小于(yu)等于(yu)100W的(de)元(yuan)件(jian)為(wei)(wei):士10%。對(dui)(dui)額定(ding)(ding)(ding)功(gong)(gong)率(lv)大于(yu)100W的(de)元(yuan)件(jian)為(wei)(wei)+5%~- 10%或10W,取兩者(zhe)中的(de)較大值。

3.泄露(lu)電(dian)流冷態泄露(lu)電(dian)流以及(ji)水壓和密封試(shi)驗(yan)后泄露(lu)電(dian)流應(ying)不超(chao)過(guo)0.5mA工作溫度下的熱態泄露(lu)電(dian)流應(ying)不超(chao)過(guo)公式中的計(ji)算值，但(dan)不超(chao)過(guo)5mA I=1/6 (tTX0.00001) I一 熱態泄露(lu)電(dian)流mA t-發(fa)熱長度mm T-工作溫度C多(duo)個元件(jian)串聯到電(dian)源(yuan)中時，應(ying)以這一組元件(jian)為 整體進行泄露(lu)電(dian)流試(shi)驗(yan)。

4. 絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)出(chu)廠檢驗時冷態絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)應(ying)不(bu)小于50MQ密封試(shi)驗后，長(chang)期存放或者(zhe)使(shi)用后的絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)應(ying)不(bu)消與MQ工作(zuo)溫度(du)下的熱態絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)應(ying)不(bu)低于公式中的計(ji)算(suan)值(zhi)，但應(ying)不(bu)小于1MQ R=「(10-0.015T) /t」X0.001 R熱態絕(jue)(jue)(jue)緣(yuan)電(dian)(dian)(dian)阻(zu)MQ t一-發 熱長(chang)度(du)mmT一工作(zuo)溫度(du)°C

5.絕緣(yuan)耐壓強度元件應在規(gui)定的試驗(yan)條件和試驗(yan)電壓下保持1min,而(er)無閃絡和擊穿現象

6.經受通斷電(dian)的能(neng)力(li)元件(jian)應能(neng)在規定的試驗條件(jian)下經歷2000次(ci)通斷電(dian)試驗，而(er)不發生損壞